package com.vip.service;

import com.vip.entity.User;

import java.util.List;

/**
 * @author yangjinshan
 * @time:2024/11/13 15:12
 */

public interface UserService {
    void add(User user);

    void delete(int id);

    void update(User user);

    List<User> findAll();
}
